John damm



(No Model.) J. DAMM.

STREET SWEBPER.

No. 472,437. Patented Apr. '5, 1892.

7 Y H a i A W 1" ,qi-e w I ll 1' UNITED STATES PATENT OFFICE.

.TOHN .DAMM, on NEW YORK, N. Y.

STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 472,437, dated April 5, 1892.

Application filed September 24, 1891. Serial No. 406,672. (No model.)

1'0 all whom it may cmwern:

Be it known that I, JOHN DAMM, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Street-Sweepers, of which the following is a specification.

This invention relates to an improvement in street-sweepers; and it consists in the details of construction set forth in the following specification and claims, and illustrated in the accompanying drawings, in Which Figure 1 is a side elevation of the sweeper. Fig. 2 is a section along 00 00, Fig. 3. Fig. 3 is an inverted plan view of Fig. 1. Fig. 4 is a section along y y, Fig. 1.

The rear brush A is composed of elasticallysupported or springsupported independent sections a a a a so that each section can give in order to pass obstructions. Both the rear brush A and the gutter-brush B are connected by cables 1') b in the form of ropes or chains with the ratchet-disk K of a lever O, whereby both brushes can be simultaneously raised or lowered. The dirt is thrown by brush A along scoop G into the elevator D, which delivers the dirt into a boX or receptacle E, which is fitted transversely into the frame or support F. Said receptacle has a drop-bottom 6, so that when the receptacle is drawn out to the position shown by dotted lines, Fig. 4, the bottom drops to dump ordeliver the contents of the receptacle. frame F is support-ed by the wheels H, so as to form a vehicle which can be readily propelled or drawn. Belts I convey motion from the wheels or their axles to the elevator and brushes. The gutter-brush, it is noticed, is

adapted to remove the dirt from the gutter The and throw it into the path of the rear brush.

The scoop G swings on a suitable pivot, so that said scoop trails along the pavement.

The lever C, it is noticed, is provided with a ratchet-disk K, to which the cables I) are eccentrically connected, so that on swinging the lever in the proper direction the ropes are tightened to simultaneously raise the gutterbrush and the lever-brush. The pawl L enables the disk and lover to be locked.

What I claim as new, and desire to secure by Letters Patent, is

1. In a street-sweeper, the combination, with a vertically-movable rear brush A, a front gutter-brush B, and an elevator D, of a rotary diskK, having a lever O, and a pairot' cables I), both eccentrically secured to the disk and connected, respectively, with the rear brush and the gutter-brush for simultaneously raising and lowering the two brushes, substantially as described.

2. In a street-sweeper, the combination, with a verticall ymovable rear brush A, a front gutter-brush B, and an elevator D, of a rotary ratchetdisk K, having a lever G, a pair of cables I), both eccentrically secured to the disk and connected, respectively, with the rear brush and the gutter-brush for simultaneously raising and lowering the two brushes, and a pawl for locking the ratchet-disk, substantially as described.

I In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN DAMM.

Witnesses:

WM. 0. HAUFF, E. F. KASTENHUBER. 

